Fan.



No. 721,156. PATENTED FEB. 24,- 1993.

W. E. GOLBMAN.-

FAN. APPLICATION FILED MAY 15, 1902.

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APPLICATION FILED KAY 15, 1902.

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UNITED STATEs PATENT OFFICE.

WALTER E. COLEMAN, OF NEWDORP, NEW YORK.

FAN.

SPECIFICATION forming part of Letters Patent No. 721,156, dated February 24, 1903.

Application filed May 15, 1902. QeriaJ. No. 107,398. (No model.)

ers skilled in the art to which the invention appertains to make and use the same.

My invention relates to electric fans; and it consists, primarily, in the means employed for effecting a circular rotation of the fan and motor upon the supporting-base directly from the motor-shaft, and, secondarily, in the herein-specified means for imparting a rotary motion to the deflectors by motion borrowed directly from the motor-shaft, as hereinafter described, and claimed specifically.

In the accompanying drawings, Figure 1 is a front elevation of my improved fan; Fig; 2, a top View, partly broken away; Fig. 3, a side elevation; Fig. 4, a detail view, upon an enlarged scale, of the forward end of'the motor shaft and connections. Fig. 5 is a sectional view of the friction-wheel.

The motor M is of usual construction and is mounted upon trunnions m on.the bifurcated upper end 'm' of the spindle m which spindle is rotatably mounted in a standard or base B.

G is the guard-frame, attached to the motor and traveling therewith.

F is the fan upon the motor-shaft S,

Upon the motor-shaft S in front of the fan F is formed the worm-screw s, which meshes into the worm-gearW upon the upper end of the shaft U), which is formed with a'collar w,

(see Fig. 1,) which rests upon and is support-f ed by a portion of the guard-frame G-as, for

instance, the cross-bar g. The upper end of the shaft to is journaled in an arm a, projecting from the sleeve A, which encircles an extension s' of the motor-shaft S. To the lower portion of the shaft to is attached the frictionwheel T, preferably by means which admit of its adjustment upon said shaft, as by a setscrew 23. The periphery of this friction-wheel T is preferably formed of a rubber cushion or otherwise constructed to afford the requisite degree of contact with the conical tread 7) upon the stationary base B.

Secured rigidly to the extension 8' of the shafts is a second worm-screw 5- which engages with the worm-gear 0 upon the horizontal shaft D, journaled in the side members of the guard-frame G. This shaft D carries a pulley d, by which power is transmitted to the, rotating deflector-shafts E E, carrying the deflectors e e". Thus, as shown in the drawings, the belt h transmits power to the pulley e upon the shaft E, which is in turn provided with a pulley'e which transmits the motion through the belt h to the pulley 6 upon the shaft E. It is obvious that this identical arrangement of pulleys and belts is not essential, and I do not confine myself to the same, the arrangement herein shown being by way of illustration only.

The operation is as follows: The rotation of the motor-shaft S causes the worm s to rotate the shaft w, and henoe'causes the friction-wheel T to travel over the tread b upon the base B. As a result the motor, guard, fan, 850., travel continuously in one direction around the base B upon the axial center of the spindle m If it is desired to increase the speed of rotation, the friction-wheel T is adjusted upon the shaft to so as to bear upon the tread 1) upon a plane of less diameter, or, if preferred, a friction-wheel of greater diameter may be substituted with like result. The motor, being mounted upon the horizontal trunnionsm, is free to adapt itself to any change in inclination caused by the adjustment of the friction-wheel T. While the motor, fan, guard, &c., are thus being rotated around the axial center of the-spindle "m as a whole,-the worm s rotates the worm-wheel C, and thereby causes acontinuous rotation -.of the deflector-shafts E E, so that the deflector-blades e e divert and distribute the current of air from the fan F in all directions.

I have herein shown and described the tread 12 upon the base B as conical in form for the purpose of providing for the increase or diminution of speed of rotation through the medium of the adjustable friction-wheel. T.

It is obvious, however, that this conical tread is not indispensable, since the tread may be of cylindrical or any other desired form without departing from the spirit and intent of my invention. It is also obvious that one or any plural number of rotatable deflectors may be mounted upon the guard-frame and ICO rotated by motion derived directly from the motor-shaft, substantially as herein set forth.

It will be seen that by my construction and arrangement of parts I attain What may be designated as a universal distribution of the air-current generated by the fan F, the horizontal rotation of the motor, fan, and connections covering the'field horizontally, While the rotating deflectors e 6 break up and divert portions of the current vertically, so that a more thorough and complete disturbance and distribution of air in an apartment is attained than heretofore.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination with astationary base and a rotatable spindle supported therein, of an electric motor and fan mounted upon said spindle, a rotatable friction-wheel for engaging said base for automatically rotating said motor and fan around the base of said spindle by the direct action of the motor, and an independent shaft for said friction-Wheel, substantially as described.

2. The combination of the electric motor M, and fan F, the supporting-spindle m mounted rotatably in the stationary base 13, said stationary base B, being formed with the tread b, the motor-shaft S, formed with the screw- Worm s, the shaft w, supported upon the guard-frame G, the worm-gear W and the friction-wheel T, secured to said shaft 10, and bearing upon the tread b, upon the base B, substantially in the manner and for the purpose set forth.

3. The combination of an electric motor and fan, a guard-frame having one or more rotatable deflectors mounted thereon, and means for rotating said deflectors by the direct action of the motor, substantially as herein set forth.

4:. The combination of the motor M, the fan F, the guard-frame G, the rotatable deflectors e, 6, having shafts E, E, mounted on said guard-frame G, the worm-screw .9 upon the motor-shaft S, the worm-gear 0, upon the shaft D, and means for transmitting motion from said shaft, to one or more of the deflector-shafts E, E, substantially in the manner and for the purpose described.

WALTER E. COLEMAN.

Witnesses:

D. W. GARDNER, F. E. ROACH. 

